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Add initial OTLP ingestion docs 

We still need a guide that we can link users to in https://github.com/prometheus/docs/tree/main/content/docs/guides
This guide should show sending metrics from application directly via
the OTel SDKs and also sending through the Collector.

Signed-off-by: Goutham <gouthamve@gmail.com>
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Goutham 2023-08-03 00:11:36 +02:00
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8
docs/feature_flags.md
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@ -126,3 +126,11 @@ still ingest those conventional histograms that do not come with a
corresponding native histogram. However, if a native histogram is present,
Prometheus will ignore the corresponding conventional histogram, with the
notable exception of exemplars, which are always ingested.
## OTLP Receiver
`--enable-feature=otlp-write-receiver`
The OTLP receiver allows Prometheus to accept [OpenTelemetry](https://opentelemetry.io/) metrics writes.
Prometheus is best used as a Pull based system, and staleness, `up` metric, and other Pull enabled features
won't work when you push OTLP metrics.

13
docs/querying/api.md
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@ -1294,3 +1294,16 @@ Enable the remote write receiver by setting
endpoint is `/api/v1/write`. Find more details [here](../storage.md#overview).
*New in v2.33*
## OTLP Receiver
Prometheus can be configured as a receiver for the OTLP Metrics protocol. This
is not considered an efficient way of ingesting samples. Use it
with caution for specific low-volume use cases. It is not yet suitable for
replacing the ingestion via scraping yet.
Enable the OTLP receiver by the feature flag
`--enable-feature=otlp-write-receiver`. When enabled, the OTLP receiver
endpoint is `/otlp/v1/metrics`.
*New in v2.47*